Ranitidine and Malarone drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Ranitidine (ranitidine) and Malarone (atovaquone; proguanil hydrochloride). Common drug interactions include pneumonia among females and abdominal pain among males.

The phase IV clinical study analyzes what interactions people have when they take Ranitidine and Malarone. It is created by eHealthMe based on reports of 23 people who take the same drugs from the FDA, and is updated regularly.

What is Ranitidine?

Ranitidine has active ingredients of ranitidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 234,475 Ranitidine users. Check the latest studies of Ranitidine.

What is Malarone?

Malarone has active ingredients of atovaquone; proguanil hydrochloride. It is often used in malaria. eHealthMe is studying from 3,098 Malarone users. Check the latest studies of Malarone.

On Jul, 21, 2026

23 people who take Ranitidine and Malarone together, and have interactions are studied.

Ranitidine and Malarone drug interactions.

What are the common drug interactions of Ranitidine and Malarone, by gender? *:

female:

Pneumonia
Pneumothorax (the presence of air or gas in the cavity between the lungs and the chest wall, causing collapse of the lung)
Postmenopausal haemorrhage (post-menopausal bleeding)
Pyrexia (fever)
Restlessness (not able to rest)
Sepsis (a severe blood infection that can lead to organ failure and death)
Sinus disorder (disease of sinus)
Sinus tachycardia (a heart rhythm with elevated rate of impulses originating from the sinoatrial node)
Sjogren's syndrome (a disease that causes dryness in the mouth and eyes)
Sleep disorder

male:

Abdominal pain
Asthenia (weakness)
Arrhythmia (irregular heartbeat)
Arthralgia (joint pain)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Bedridden
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Chest discomfort
Chest pain
Clubbing (deformity of the fingers and fingernails)

What are the common drug interactions of Ranitidine and Malarone, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Actinomycosis (infection that causes sores, or abscesses)
Dry eye (lack of adequate tears)
Narcolepsy (brain's inability to regulate sleep-wake cycles normally)
Nightmare (unpleasant dream)
Palpitations (feelings or sensations that your heart is pounding or racing)

50-59:

Arthralgia (joint pain)
Back pain
Post-traumatic stress disorder

60+:

Abdominal pain
Pyrexia (fever)
Hypotension (abnormally low blood pressure)
Hypoxia (low oxygen in tissues)
Nausea (feeling of having an urge to vomit)
Nightmare (unpleasant dream)
Overdose
Pneumonia
Pneumothorax (the presence of air or gas in the cavity between the lungs and the chest wall, causing collapse of the lung)
Postmenopausal haemorrhage (post-menopausal bleeding)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 17 people, 73.91%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 13 people, 56.52%
Drowsiness: 3 people, 13.04%

* Approximation only. Some reports may have incomplete information.

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